Removing sap and residue from a winscreen

The windscreen on my Honda S2000 has the residue from using Diamondbright on the screen, plus pine sap from parking under pine trees.

All the preparitory cleaners from Auto Glym, downwards have failed to remove the thin film that only shows when the screen is wet. I have also used industrial cleaners and also resorted to steel wool and Acitone - no result.

Asked on 28 September 2012 by mr29slack

Answered by Honest John
Try Mer abrasive windscreen cleaner or white smokers toothpaste.
Similar questions
After looking at and test driving a lot of small and medium hatchbacks to replace our now three year old BMW 1 Series, we have ordered a new Renault Clio in glacier white. Please could you let me know...
Recently you had a question about sun cream removal from car paintwork. With 3 young children I've had a lot of experience with this. At first I tried hot soapy water, T-Cut, clay bars - nothing would...
I have bought some Simoniz brake dust repellant alloy wheel cleaner 2-in-1 formula. It is a spray. A friend has advised against using it as he says it will ruin the brake pads. Is he right? I have thought...
 

Value my car

Save £75 on Warranty using code HJ75

with MotorEasy

Get a warranty quote

Save 12% on GAP Insurance

Use HJ21 to save on an ALA policy

See offer